Car-coupling



(No Model.) I

- F. N. EDDLEMAN.

GAR COUPLING.

No., 337,823. Patented Mar. 16, 1886.

Nrrn STATES FRANCIS NEWVTON EDDLEMAN, OF MOUNT PLEASANT, TENNESSEE, ASSIGNOR OF THREEFOUBTHS TO WILLIS J. HOWVARD, JAMES C. COOPER, ALBERT C. COOPER, AND JAMES H. COOPER, ALL OF SAME PLACE.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 337,823, dated March 16, 1856.

Applicaiioii filed August 21, 1885, Serial No. 174,984. (No model.)

To all whom it may concern.-

Be it known that I, FRANCIS NEWTON ED- DLEMAN, a citizen of the United States, residing at Mount Pleasant, in the county of Maury and .5 State of Tennessee, have invented new and useful Improvements in Car -Couplings, of which the following is a specification.

This invention relates to that class of automatic car couplings in which a vertically- [O movable coupling-pin is supported in a draw head by means of a pivoted trigger or tripping-arm in such position that an entering link secured in an opposite draw head will, by dislodging the trigger, cause the couplingpin to fall and engage said link.

The invention consists in certain peculiarities in the construction, arrangement, and combination of parts in an automatic carcoupling, as hereinafter described, and particularly defined in the claims.

In the annexed drawings, illustrating the invention, Figure l is a perspective view of a car-coupling embodying my improvements. Fig. 2 is a vertical longitudinal section of my improved car-coupling, and showing a drawhead made with upper and lower compartments for the accommodation of a link at different heights.

Referring to the drawings, A designates a draw-head having the usual flaring mouth, a,

and provided with the ordinary vertical holes,

b, for passage of the coupling-pin. The interior of the draw-head is provided with one or more horizontal partitions, 0, whereby two or 3 5 more compartments or recesses are formed for supporting the link at any desired height. The holebisextended through the partition. (See Fig. 2.)

Upon the top of the draw-head, near its front 40 end, are two vertical guide-pins, d, one on each side. These guide-pins are provided at the top with heads 6, and theirlower ends are secured to the draw-head by means of nutsf, letinto the sides of said draw-head, as shown in Fig. 1.

5 To the guide-pins dis fitted a vertically-movable block, 13, that is provided at its ends with holes g, for moving on said pins, the upward movement of the block being limited by the heads 6. This block B carries an ordinary coupling-pin, C, which thus has a vertical 5n movement in the holes I) of the draw-head.

To the rear side of the block 13 is hinged-or pivoted atriggerortripping-arin, D, by which the block B and pin C are supported in position for the pin to engage an entering link when the trigger is pushed back. This trigf ger or tripping-arm has a vertical move 'ment, with a forward and back oscillation in slots h and i. formed in the top and bottom of the draw-head. 6c

The block B, with attached couplingpin C and pivoted trigger D, can be raised from the top or platform of a car by means of a chain, It, attached to said block, or the block and its pin and trigger may be raised from the side of the car by means of a cranked arm or other suitabledevice. (Notshown) \Vhentheblock B is raised, the lower end of the tripping-arm D, on rising out of the lower slot, 2', will gravitate forward until said tripping-arm is in a vertical position,with its lower end resting on the door of the draw-head in front of slot 1, and as the tripping-arm is longer than the coupling-pin the latter will thus be supported out of the path of the entering link. When the link enters the draw head and strikes against the trigger D, the latter is dislodged and falls back into and through the lower slot, 1;, thus allowing the block B and pin C to fall, so that the pin and link will engage. So

It will be observed that the slotted openings h and i are located at the rear of the pin-holes b and in line therewith, theforward end of the upper slot, h, being extended in advance of the corresponding end of the lower slot, 2, while the rear end of the latter extends back to a greater distance than the rear end of the upper slot. There is thus a vertically-diagonal opening through the draw head, connecting said slots. It will also be seen that while the 0 rear ends of both slots h and t are inclined at the same angle the forward end of the upper slot is vertical, so as to afford a shoulder or bearing, Z, to limit the forward swing of the trigger D, and the forward end of the lower 5 slot is inclined or beveled at m to a greater angle than the rear ends of either of said slots. It will also be noted that the lower end of the trigger or tripping-arm D is curved forward and upward at p, to facilitate its movements over the incline mwhen the coupling is operated. The front edge of the tripping-arm D, above the curve 19, is straight; but a rearward curve, t, is formed at its upper end, to prevent binding against the vertical shoulder Z when the said arm is lowered, as shown by dotted lines in Fig. 2.

By forming the rear edge of the trippingarm D with aconcaved curve. a, all liability of binding against the rear ends of the slots h and t is avoided.

The tripping-arm or trigger D may be connected to the block B by means of astaple, w, as shown; or it may be hinged, pivoted, or jointed thereto in any convenient manner.

The operation and advantages of this coupling will be readily understood. When the block,with attached pin, is raised, the trigger or tripping-arm will be automatically set, and so support the block and attached couplingpin until the entering link dislodges the trigger, and so causes the block to descend, together with the attached'pin, which is thus instantly and securely engaged with the link. The cars are thus coupled automatically, and

may be readily uncoupled without any news sity of passing between the opposite drawheads. i

What I claim as my invention is 1'. The combination of the draw-head provided with longitudinal slots in its upper and lower sides, the vertical stationary guide-pins rigidly secured to and extending upward from the draw-head, the movable block having per-- supporting the block and pin when raised unand pin when raised until the entering link dislodges the trigger and causes the block and pin to descend, thereby automatically engag-' ing the pin andlink,substantially as described. In testimony whereof I hereunto atfix my sig-' naturein presence of two witnesses.

his

FRANCIS NEWTON X EDDLEMAN.

mark.

Witnesses:

W. J. HOWARD, A. O. COOPER. 

